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  <p>
    Reports incorrect scope field expressions.
  </p>
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  <p>
    A scope field expression is a script expression matching CWT expression data type
    <code>"scope"</code>, <code>"scope_field"</code> or <code>"scope_group"</code>.
  </p>
  <p>
    For example, <code>root</code>, <code>root.owner</code>, <code>event_target:some_target</code>, <code>root.owner.event_target:some_target</code>.
  </p>
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